<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>错误提示</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f5f5f5;
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: 100%;
            margin: 0 auto;
            padding: 20px;
            background-color: #fff;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            border-radius: 5px;
            margin-top: 100px;
            text-align: center;

        }

        h1 {
            font-size: 24px;
            margin: 0 0 20px;
            text-align: center;
        }

        p {
            font-size: 16px;
            margin: 0 0 10px;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>发生错误</h1>
        <p><?php echo $msg; ?></p>
    </div>
</body>
</html>
